| Assertion (A): Earth's magnetic field does not affect the functioning of a moving coil galvanometer. |
| Reason (R): Earth's magnetic field is too weak. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is NOT the correct explanation of A
C) A is true but R is false
D) A is false and R is true
Correct Answer: A
Solution :
Option [a] is correct. Explanation: The coil of moving coil galvanometer is suspended in a very strong radial magnetic field. Earth's magnetic field is too weak compared to that and hence its effect is negligible. So, assertion and reason both are true and the reason explains the assertion properly.
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